Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 5956 881 15% 0.01 1153 589 51% 6.7
10 Kinds of People 10493 2218 21% 0.01 1844 1252 68% 5.3
2048 5989 2842 47% 0.00 2724 2324 85% 2.5
3D Printed Statues 5911 2759 47% 0.00 2620 2347 90% 2.1
3D Printer 499 107 21% 0.00 187 85 45% 7.9
3-Sided Dice 1899 169 9% 0.00 308 115 37% 8.6
4 thought 5944 2003 34% 0.00 1998 1662 83% 3.2
A1 Paper 3888 1156 30% 0.00 1131 890 79% 3.8
Aaah! 20552 9690 47% 0.00 8706 8093 93% 1.6
Abandoned Animal 1238 243 20% 0.03 295 210 71% 5.2
ABC 8247 3799 46% 0.00 3621 3299 91% 1.6
Above Average 4781 1995 42% 0.00 1994 1785 90% 2.0
A+B Problem 5804 598 10% 0.03 832 285 34% 8.1
A Brief Gerrymander 173 37 21% 0.15 37 22 59% 8.2
Abstract Art 224 62 28% 0.00 61 45 74% 6.8
Absurdistan Roads II 499 180 36% 0.00 175 119 68% 6.8
Absurdistan Roads III 1253 340 27% 0.02 326 246 75% 5.6
Access Points 207 90 43% 0.01 76 59 78% 5.9
A Classy Problem 7144 1852 26% 0.01 1583 1222 77% 4.4
ACM Contest Scoring 5089 3206 63% 0.00 2821 2665 94% 1.6
Adding Words 7406 1712 23% 0.00 1706 1294 76% 4.5
A Different List Game 5645 388 7% 0.00 694 138 20% 9.1
A Different Problem 21979 8461 38% 0.00 7837 6794 87% 2.0
Adjoin the Networks 1441 387 27% 0.00 339 264 78% 5.7
Administrative Difficulties 815 194 24% 0.03 217 142 65% 6.6
Advanced Causal Measurements 49 12 24% 0.10 15 12 80% 6.7
Adventure Begins 169 54 32% 0.06 62 46 74% 4.3
Adventures in Moving -- Part IV 749 231 31% 0.00 206 180 87% 4.2
A Favourable Ending 1262 325 26% 0.00 301 222 74% 4.7
A Feast For Cats 1641 560 34% 0.00 377 313 83% 4.5
Air Conditioned Minions 3250 927 29% 0.00 993 746 75% 3.6
Airline Hub 1541 276 18% 0.01 309 170 55% 6.9
Airport Coffee 711 153 22% 0.09 148 111 75% 6.6
Airport Construction 2822 378 13% 0.02 306 161 53% 7.4
Airport Logistics 48 11 23% 0.00 17 11 65% 7.6
Airports 293 90 31% 0.11 85 65 76% 5.9
Akcija 5000 2191 44% 0.00 1957 1730 88% 2.0
Aladin 733 68 9% 0.10 113 21 19% 9.0
Alchemy 95 15 16% 0.03 27 15 56% 8.0
Alea iacta est 29 11 38% 0.34 14 11 79% 6.9
Alice in the Digital World 2123 590 28% 0.01 590 462 78% 4.1
Alien Codebreaking 54 6 11% 3.23 16 4 25% 8.8
Alien Numbers 1766 909 51% 0.00 882 801 91% 2.0
A List Game 6133 1834 30% 0.00 1763 1481 84% 2.9
All about that base 2488 978 39% 0.00 943 790 84% 3.1
All Different Directions 912 396 43% 0.00 362 315 87% 2.6
Allergy Test 341 108 32% 0.00 110 58 53% 7.9
All Friends 785 152 19% 0.00 138 71 51% 8.5
All Just A Dream 1549 362 23% 0.05 244 172 70% 6.6
All Pairs Shortest Path 6886 1221 18% 0.02 822 567 69% 6.1
Almost Perfect 5205 1215 23% 0.00 1290 1017 79% 3.4
Almost Union-Find 5189 912 18% 0.02 810 458 57% 6.8
Alphabet 956 471 49% 0.00 479 404 84% 3.1
Alphabet Spam 5549 3576 64% 0.00 2798 2694 96% 1.4
Alternative Bracket Notation 193 81 42% 0.00 85 71 84% 4.9
Altruistic Amphibians 318 75 24% 0.24 77 54 70% 5.1
Amalgamated Artichokes 3285 1484 45% 0.01 1330 1158 87% 2.7
Amanda Lounges 1244 343 28% 0.03 313 245 78% 5.5
A Mazing! 1679 401 24% 0.09 189 141 75% 5.0
Amazing Adventures 149 39 26% 0.03 46 29 63% 7.0
Amazing Race 259 68 26% 0.39 76 55 72% 6.6
Ambiguous Result 204 48 24% 0.03 72 46 64% 7.8
Amsterdam Distance 982 406 41% 0.00 455 368 81% 2.8
A Multiplication Game 467 138 30% 0.00 158 119 75% 4.3
Anagram Counting 2678 1033 39% 0.00 981 814 83% 3.1
Andrew the Ant 220 59 27% 0.06 74 55 74% 5.4
A New Alphabet 8573 3899 45% 0.00 3645 3378 93% 1.7
An I for an Eye 247 67 27% 0.00 77 57 74% 5.5
Animal Classification 1372 295 22% 0.03 276 178 64% 6.6
An Industrial Spy 1306 675 52% 0.02 528 451 85% 3.2
Another Brick in the Wall 2294 1096 48% 0.00 1063 968 91% 1.9
Another Candies 6224 1650 27% 0.00 1748 1421 81% 3.3
Another Dice Game 83 60 72% 0.00 53 49 92% 3.4
Another Query on Array Problem 1143 149 13% 0.05 254 105 41% 7.8
Antenna Placement 28 17 61% 0.00 8 7 88% 6.2
Anthony and Cora 663 172 26% 0.00 209 143 68% 5.5
Anthony and Diablo 1776 627 35% 0.00 690 594 86% 2.5
Antiarithmetic? 1008 183 18% 0.01 245 133 54% 7.4
Ants 2685 1215 45% 0.00 939 834 89% 2.4
Apaxiaaaaaaaaaaaans! 9225 5607 61% 0.00 5090 4869 96% 1.4
Apostrophe Catastrophe 61 15 25% 0.00 14 9 64% 6.5
Appalling Architecture 168 54 32% 0.00 61 52 85% 4.8
Apparatus 638 162 25% 0.01 124 95 77% 5.1
Apple Market 445 89 20% 0.07 104 55 53% 7.7
Apples, Cherries, and Mangos 364 114 31% 0.02 107 82 77% 5.6
A Prize No One Can Win 537 235 44% 0.00 197 173 88% 2.5
Aquarium Tank 438 119 27% 0.00 113 88 78% 5.4
Aqueduct Construction 143 51 36% 0.01 42 36 86% 6.1
A Question of Ingestion 1093 266 24% 0.00 246 185 75% 5.7
Arable Area 233 54 23% 0.04 56 34 61% 8.1
Arachnophobia 245 74 30% 0.14 69 56 81% 4.9
A Random Problem 127 25 20% 0.00 31 20 65% 8.0
A Rational Sequence 1332 445 33% 0.00 479 346 72% 5.0
A Rational Sequence 2 1704 1257 74% 0.00 1109 1065 96% 1.5
A Rational Sequence (Take 3) 659 561 85% 0.00 435 425 98% 1.7
Arbitrage? 1742 355 20% 0.02 261 211 81% 3.6
Arcade! 1122 202 18% 0.01 195 138 71% 6.3
Arctic Network 1283 447 35% 0.00 390 311 80% 4.4
A Real Challenge 6089 2943 48% 0.00 2837 2660 94% 1.5
Area of Effect 153 10 7% 1.93 22 8 36% 8.5